JP3553642B2 - Patchwork sewing assist device and sewing machine provided with the device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a patchwork sewing assisting device and a sewing machine provided with the device.
[0002]
[Prior art]
Patchwork forms a single large pattern by sewing a plurality of pattern pieces together, and has recently become popular.
[0003]
[Problems to be solved by the invention]
However, when performing patchwork, there is a problem that it is troublesome to calculate the size of each material piece. That is, the size of the pieces changes for each pattern, and there are various variations in the number of pattern pieces even for the same pattern, and the size of the pattern pieces also changes according to the number of pattern pieces. In addition, the material piece dimensions are calculated by adding the seam allowance and kinks to the pattern piece dimensions.However, there are problems such as the seam allowance and kinks also differing depending on the pattern. It takes time. In particular, it was practically impossible to calculate a pattern and a size of a finished product based on the size of the patchwork material on hand.
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems, and an object of the present invention is to provide an auxiliary device that can easily calculate the size of a material piece and a sewing machine including the auxiliary device.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a sewing machine having a patchwork stitching assisting function according to the present invention includes a means for providing information on a pattern of a patchwork, a means for providing information on a size of a patchwork material, and It is characterized by comprising means for calculating the size of each required material piece and means for outputting the calculation result.
The means for providing information on the pattern of the patchwork is typically a storage device or an input device, and supplies at least the shape information of the pattern. In addition, a calculation program or the like for determining the sewing allowance, the ratio of the texture, or the size of the material piece according to the shape may be supplied. When a storage device is used, a plurality of pieces of pattern information may be stored, and a desired pattern may be selected. In this case, the information on the pattern may be separate pattern information for each piece quantity, or only one piece having the same shape may be stored, and a means for inputting the number of pattern pieces as described later is further provided. Thus, the user may be allowed to input the number of pieces arbitrarily.
The means for providing the information on the size of the material is usually an input device by a user or the like, so that the user can input the size of the material in hand.
The calculating means calculates the size of each material piece from the information. The calculating means may also calculate the size of the entire completed work in addition to the size of each material piece.
Information on the number of pattern pieces of the patchwork may be supplied as information on the pattern, or means for separately inputting the number of pattern pieces may be further provided. In this case, the calculating means calculates the required size of each material piece based on the information on the pattern and the input number of pieces and the information on the material size.
The size of the material piece by the above calculation is generally the size of the pattern piece of the work plus the sewing allowance and the kinks.
The output means is typically an image display means, an audio display means, or a print output means, or a combination thereof, but any other output means can be used.
[0005]
[Action]
Information is provided from means for providing information on the patchwork pattern. When a means for storing information on a plurality of patchwork patterns is provided, the information is selected from a means for selecting information on a desired patchwork pattern therefrom. Based on this information and the information from the means for providing information on the size of the material, the calculating means calculates the required size of each material piece. This calculation result is output by the output unit.
The calculating means may calculate the size of the entire completed work in addition to the size of each material piece.
In the case where a means for inputting the number of pattern pieces is further provided, the calculating means calculates the required size of each material piece based on the input information on the number of pieces and the information on the size of the material.
The calculation of the size of the material piece is generally performed by adding a seam allowance and a kink to the size of the pattern piece of the work. The seam allowance and crevice vary depending on the pattern, and information on the calculation method may be stored in a unit that stores the information together with the pattern information.
[0006]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, the patchwork sewing assisting device is provided on the sewing machine, but the assisting device may be a device separated and independent from the sewing machine.
In FIG. 1, a means for providing information on a patchwork pattern includes a storage unit 1 and a selection unit 2. The storage means 1 stores information on a plurality of patchwork patterns A to N. In this embodiment, information on pattern shapes and color classification is stored. In this embodiment, a program for calculating the dimensions and the like of the material piece is stored for each pattern.
The storage means 1 may be provided in the sewing machine main body, or may be a card such as a ROM card. When a card is used, a different card may be used for each pattern.
[0007]
The pattern information stored in the storage unit 1 is read out to the calculation unit 7 by operating the selection unit 2. Information from the material size input means 4 and the number-of-pieces specifying means 5 is input to the calculating means 7, and the calculating means 7 determines the material piece S based on the information and the information from the storage means 1. Is calculated and displayed on the display means 8.
The arithmetic means 7 is configured to calculate the size of the work W in this embodiment, in addition to the size of the material piece S, and can output the number of material pieces for each color.
These values can be calculated by appropriately combining information from the material size input means 4 and the piece number specifying means 5 with information from the storage means 1 as described below.
Size of Material Piece S: Pattern Shape + Number of Pattern Pieces + Material M Size Work W Size: Pattern Shape + Number of Pattern Pieces + Size of Material Piece S Number of Material Pieces S by Color: Pattern Shape and Color Classification Information + Number of pattern pieces [0008]
The size of the material piece S is equal to the size of the pattern piece P of the completed product, plus a sewing allowance and a quiver.
In the above description, the pattern piece number information is not stored in the storage means 1 but the number of pieces is input by the piece number designating means 5. Alternatively, the piece number specifying means 5 can be omitted. It is also possible to adopt a configuration in which information about the number of pattern pieces is input to the storage means 1 and the number of pieces is changed by the piece number specifying means 5 as appropriate.
[0009]
An outline of the calculation will be described with reference to the example of FIG.
The case of a 9-piece log cabin shown in FIG. 2C as a patchwork pattern will be described. It is assumed that this pattern is color-coded into a shaded portion and a white portion without the hatched portion.
As shown in FIG. 2A, when a patchwork of a log cabin pattern is to be performed using a 23 × 15 cm colored cloth and a 20 × 15 white cloth, the above numerical value is input to the arithmetic unit 7 as the size of the material M. The arithmetic means 7 compares the size of the colored material pieces A, B, C, D, and E with the size of the colored material M, and simultaneously determines the sizes of the white material and the material pieces A, B, C, and D. By comparison, the size of the largest material piece that fits within the size range of the material is determined. FIG. 2 (A ′) shows an example in which the material M is 23 × 10 cm long and thin, and the calculating means 7 changes the cloth removal according to the shape of the material M as shown in FIG. , D is determined. The dimensions of each material piece S are output as shown in (B), and the number of pieces for each color is also output for each piece.
Furthermore, the sewing allowance and the size of the quiver are removed from the material piece S, the dimensions of the pattern piece of the work are calculated, the dimensions of the entire work are calculated from the pattern piece dimensions, and the size of the work as shown in FIG. Is output.
The user can cut the material in accordance with the above output, prepare the material pieces S, and sew the material pieces S together to easily complete the work.
[0010]
FIG. 3 is a block diagram showing a hardware configuration of one embodiment of the present invention.
The CPU 100 controls the sewing machine in accordance with the program stored in the program storage device 101. The CPU 100 controls the sewing machine motor drive circuit 110 at a speed instructed by a rotation speed command device 103 which is a speed controller such as a foot-operated type. By rotating the motor 111, the stitch forming mechanism 112 is driven at a sewing speed corresponding to the designated speed. The stitch forming mechanism 112 includes a needle bar, a needle, and a cloth feeding mechanism, and performs a predetermined sewing. The rotation speed of the sewing machine motor 111 is detected by a motor rotation detection sensor 113, and is fed back to the CPU 100 to be used for speed control.
The timing signal generator 114 is configured to detect the vertical phase of the needle by detecting the rotation phase of the upper shaft of the sewing machine main body, and to input the timing signal to the CPU 100.
A display device 81 is provided at a front portion of the sewing machine main body (not shown), and various displays are performed by a display control device 80 in response to a command from the CPU 100.
The sewing machine main body is further provided with a patchwork calculation mode selection key 29. When a patchwork calculation is to be performed, the user can press the patchwork calculation mode selection key 29 to shift to the calculation mode.
Reference numeral 11 denotes a temporary storage device.
[0011]
The patchwork pattern data and the material piece size calculation program are stored in the pattern data / calculation program storage device 10 as described above, and the patchwork pattern is displayed on the display device 81 based on the pattern data. The configuration is such that a pattern can be selected with the patchwork pattern selection key 22 while watching.
Further, a material size input key 24, a piece number designation key 25, and a control key 27 are provided, and necessary items are input by operating these keys. In this embodiment, the patchwork pattern selection key 22, the material size input key 24, the number-of-pieces specifying key 25, and the control key 27 are a touch panel formed on a liquid crystal display screen of the display device 81. The display is formed on the screen as appropriate according to the progress.
Note that, other than the display device 81, a voice display device or a printing device such as a printer can be used, and these can be provided together.
[0012]
The CPU 100 is provided with a function corresponding to the calculating means 7, and executes a dimension calculation for each patchwork pattern in accordance with a calculation program read from the pattern data / calculation program storage device 10.
The operation of the calculation by the CPU 100 will be described with reference to FIG.
When a patchwork pattern is selected by the patchwork pattern selection key 22 (step S1), the selected patchwork pattern data and the operation program are read from the pattern data / operation program storage device 10 and the temporary storage device 11 is read. (Step S2). Next, when the size of the material M is input by operating the material size input key 24 (step S3), the size of the material M is stored in the temporary storage device 11 (step S4).
Next, when the number of pattern pieces is input using the piece number designation key 25 (step S5), the number of pattern pieces is stored in the temporary storage device 11 (step S6). The CPU 100 calculates the size of the material piece S based on the pattern data, the calculation program, the size of the work W, and the number of pattern pieces stored in the temporary storage device 11 (step S7). Then, it is checked whether or not the size of the material piece S is equal to or larger than a predetermined value (step S8). The predetermined value of the material piece S is, for example, 2 cm or more, so that a piece that cannot be actually sewn is prevented. Therefore, if the material size is too small as compared with the pattern shape and the number of pieces, it is rejected at this stage. The suitability of the size of the material piece S may be determined by the user, and the determination may be made by inputting the user's consent. If the size of the material piece S does not match, a warning is issued to prompt the user to input again (step S9), and the process returns to step S3.
When the size of the material piece S matches, the size of the work W is calculated from the size of the material piece S (step S10), and it is checked whether the size is appropriate (step S11). This may be a predetermined value, for example, or the user may make a determination and input an appropriateness.
If the size of the work W does not match, a warning is issued to prompt the user to input again (step S9), and the process returns to step S3.
If the size of the work W matches, the size of the work W, the size of the material piece S, and the number of material pieces for each color are displayed on the display device 81 (step S12).
[0013]
Next, the operation when the number of pieces is stored in the storage means 1 together with the patchwork pattern information and the number of pieces is not designated by the piece number designation key 25 will be described with reference to FIG.
When a patchwork pattern is selected by the patchwork pattern selection key 22 (step S20), the selected patchwork pattern data, the number of pieces, and the operation program are read out from the pattern data / operation program storage device 10 and temporarily stored. It is stored in the storage device 11 (step S21). Next, when the size of the material M is input (step S22), the size is stored in the temporary storage device 11 (step S23).
The CPU 100 calculates the size of the material piece S from the pattern data, the number of pieces, the calculation program, the size of the material M, and the number of pattern pieces stored in the temporary storage device 11 (step S24). Then, it is checked whether or not the size of the material piece S is equal to or larger than a predetermined value (step S25). The predetermined value of the material piece S is, for example, 2 cm or more, as described above, so that a piece that cannot be actually sewn is prevented. The suitability of the size of the material piece S may be determined by the user, and the determination may be made by inputting the user's consent. When the size of the material piece S does not match, a warning is issued to prompt the user to input again (step S26), and the process returns to step S22.
If the size of the material piece S matches, the size of the work W is calculated from the size of the material piece S (step S27), and it is checked whether the size is appropriate (step S28). This may be a predetermined value, for example, or the user may make a determination and input an appropriateness.
If the size of the work W does not match, a warning is issued to prompt the user to input again (step S26), and the process returns to step S22.
When the size of the work W matches, the size of the work W, the size of the material piece S, and the number of material pieces for each color are displayed on the display device 81 (step S29).
[0014]
FIGS. 6 to 10 show an example of display on the display device 81, based on which an operation method of the sewing machine of the above embodiment will be described.
When the patchwork calculation mode is selected by the patchwork calculation mode selection key 29, a screen shown in FIG. 6 is displayed on the display device 81. Here, the shape and color coding of the patchwork pattern stored in the storage means 1 are displayed. In this example, the checkerboard, ocean wave, lemonster, log cabin, grandmother's garden, tumbling pattern Is displayed. At the same time, a control key 27 is formed at the top of the screen so that a desired pattern can be displayed. A patchwork pattern selection key 22 is formed below each pattern, and the pattern can be selected by touching the patchwork pattern selection key 22.
[0015]
Now, when the checkerboard is selected, the screen is switched to the screen of FIG. 7, the checkerboard shape and color coding (green and white in this example) are displayed on the left side, and green and white color selection keys 89 and material size input keys are displayed on the right side 24, a piece number designation key 25 is formed. In this example, a material size display 87 and a piece number display 83 are further formed, and the number is changed by operating "+-" of the material size input key 24 and the piece number designation key 25. Can be entered. Further, control keys 27 are formed on the screen so that the screen can be operated.
When the material size and the number of pieces for each color (input in the number of columns in this example) are input using the color selection key 89, the material size input key 24, and the number-of-pieces specifying key 25, the calculation result is as shown in the screen of FIG. Is displayed. Here, the sizes of the green and white material pieces S are displayed on the material piece size result displays 84 on both sides of the screen, respectively, and the size of the work W is displayed on the lower whole work size result display 88. I have. A piece number result display 85 for each color is provided below the piece size display, and the number of pieces for each color is displayed here.
If the results of these calculations are not satisfied, pressing the "return" of the control key 27 on this screen returns to the screen of (A), where the size and the number of pieces of the material M can be input again.
On the other hand, when the "explanation" of the control key 27 is pressed on the screen of (B), the screen is switched to the screen shown in (C) and advice on how to sew the checkerboard is displayed. Here, when the "sewing" of the control key 27 is pressed, the arithmetic mode is ended and the mode is returned to the normal sewing mode.
[0016]
FIG. 8 shows a screen display in the case of an ocean wave pattern, and first shows a screen for inputting the material size and the number of pieces. In (B), the size of the material piece S and the size of the work W are displayed, and the number of the material M for each color is displayed. In (C), an advice on how to sew an ocean wave is displayed.
[0017]
【The invention's effect】
As described above, according to the first and second aspects of the present invention, the size of the material piece can be calculated and output from the pattern information of the patchwork and the size of the material, which is conventionally complicated. The calculation of the piece size is unnecessary, and the calculation of the patchwork piece that can be created from the material on hand can be easily performed. Further, according to the invention of claim 3, the size of the work can be calculated, and the size of the work can be easily grasped.
According to the fourth aspect of the present invention, since there is provided a means for inputting information relating to the number of pattern pieces, there is an advantage that data relating to the number of pieces need not be stored in the storing means. Also, the user can set or change the number of pieces.
[Brief description of the drawings]
FIG. 1 is a functional block diagram showing an embodiment of the present invention.
FIG. 2 is an explanatory diagram of an operation in one embodiment of the present invention.
FIG. 3 is a block diagram showing a configuration of one embodiment of the present invention.
FIG. 4 is a flowchart illustrating the operation of one embodiment of the present invention.
FIG. 5 is a flowchart illustrating the operation of another embodiment of the present invention.
FIG. 6 is an explanatory diagram of an embodiment of a screen display according to the present invention.
FIG. 7 is an explanatory diagram of one embodiment of a screen display according to the present invention.
FIG. 8 is an explanatory diagram of an embodiment of a screen display according to the present invention.
[Explanation of symbols]
1: storage means, 2: selection means, 4: material size input means, 5: piece number designation means, 7: calculation means, 8: display means, 10: pattern data / calculation program storage device, 11: temporary storage device , 22: patchwork pattern selection key, 24: material size input key, 25: piece number designation key, 27: control key, 29: patchwork calculation mode selection key, 80: display control device, 81: display device, 83 : Piece number display, 84: Material piece size result display, 85: Piece number result display for each color, 87: Material size display, 88: Overall work size result display, 89: Color selection key, 90: Advice display screen, 100: CPU, 101: program storage device, 103: rotation speed command device, 104: sewing mode selection button, 110: sewing machine motor drive circuit, 111: sewing machine motor, 112: Eye forming mechanism, 113: motor rotation detecting sensor, 114: timing signal generating device.

Claims (9)

Means for providing information about the patchwork pattern;
Means for providing information about the size of the patchwork material;
Means for calculating the size of each pattern piece material based on the information,
Means for outputting the calculation result;
A patchwork sewing assist device comprising: Means for providing information on the pattern of the patchwork,
Means for storing information about the plurality of patchwork patterns;
Means for selecting information on a desired patchwork pattern from the storing means;
The patchwork sewing assist device according to claim 1, further comprising: The calculating means calculates the size of the work in addition to the size of each pattern piece material,
A sewing machine having the patchwork stitching assisting function according to claim 1. Further comprising means for inputting information on the number of pattern pieces,
The calculating means calculates the size of each pattern piece material required based on the information on the input number of pieces and the information on the size,
The patchwork sewing assist device according to claim 1, 2 or 3. The size of the pattern piece material is the size of the pattern piece of the work plus a sewing allowance and a kise,
The patchwork sewing assisting device according to claim 1, 2, 3, or 4. The means for outputting is an image display means,
The patchwork sewing assist device according to claim 1, 2, 3, 4, or 5. The output means is a voice display means,
The patchwork sewing assist device according to claim 1, 2, 3, 4, or 5. The output unit is a printing unit;
The patchwork sewing assist device according to claim 1, 2, 3, 4, or 5. A sewing machine provided with the patchwork stitching assisting device according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8.

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